<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<form action="/class/add/">
    姓名: <input type="text" name="name" placeholder="输入姓名">
    <br>
    年龄: <input type="text" name="age" placeholder="输入年龄:">
    <br>
    性别: <input type="text" name="sex" placeholder="输入性别:">
    <br>
    <input type="submit" value="添加" >


</form>
</body>
</html>